diff options
| author | Thomas Weißschuh <linux@weissschuh.net> | 2024-11-11 19:09:36 +0100 |
|---|---|---|
| committer | Mario Limonciello <mario.limonciello@amd.com> | 2024-11-21 09:28:13 -0600 |
| commit | c2753b2471c65955de18cbc58530641447e5bfe9 (patch) | |
| tree | fcd0dd30636a8df1d5f389e69ae83a31ca155ab7 /drivers/gpu/drm/amd/amdgpu/Kconfig | |
| parent | 22e5c7ae12145af13785e3ff138395d5b1a22116 (diff) | |
drm/amd/display: Add support for minimum backlight quirk
Not all platforms provide the full range of PWM backlight capabilities
supported by the hardware through ATIF.
Use the generic drm panel minimum backlight quirk infrastructure to
override the capabilities where necessary.
Testing the backlight quirk together with the "panel_power_savings"
sysfs file has not shown any negative impact.
One quirk seems to be that 0% at panel_power_savings=0 seems to be
slightly darker than at panel_power_savings=4.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Tested-by: Dustin L. Howett <dustin@howett.net>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241111-amdgpu-min-backlight-quirk-v7-2-f662851fda69@weissschuh.net
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/Kconfig')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/Kconfig b/drivers/gpu/drm/amd/amdgpu/Kconfig index 41fa3377d9cf..1a11cab741ac 100644 --- a/drivers/gpu/drm/amd/amdgpu/Kconfig +++ b/drivers/gpu/drm/amd/amdgpu/Kconfig @@ -26,6 +26,7 @@ config DRM_AMDGPU select DRM_BUDDY select DRM_SUBALLOC_HELPER select DRM_EXEC + select DRM_PANEL_BACKLIGHT_QUIRKS # amdgpu depends on ACPI_VIDEO when ACPI is enabled, for select to work # ACPI_VIDEO's dependencies must also be selected. select INPUT if ACPI |